0a5b201156
Allow resource files to be removed from the final artifact based on the density and locale configuration in the config file. The APK is split along the density, locale and ABI axis. Each split is generated from the original APK without modifying the original. The new resource table is written back to the file system with unneeded assets etc removed. Test: Unit tests Test: Manually run optimize command against an APK and inspect results Test: Installed split searchlite APK (after resigning) and ran on N6 Change-Id: If73597dcfd88c02d2616518585d0e25a5c6a84d1
133 lines
4.6 KiB
C++
133 lines
4.6 KiB
C++
/*
|
|
* Copyright (C) 2016 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "LoadedApk.h"
|
|
|
|
#include "ResourceValues.h"
|
|
#include "ValueVisitor.h"
|
|
#include "flatten/Archive.h"
|
|
#include "flatten/TableFlattener.h"
|
|
#include "io/BigBufferInputStream.h"
|
|
#include "io/Util.h"
|
|
|
|
namespace aapt {
|
|
|
|
std::unique_ptr<LoadedApk> LoadedApk::LoadApkFromPath(IAaptContext* context,
|
|
const android::StringPiece& path) {
|
|
Source source(path);
|
|
std::string error;
|
|
std::unique_ptr<io::ZipFileCollection> apk = io::ZipFileCollection::Create(path, &error);
|
|
if (!apk) {
|
|
context->GetDiagnostics()->Error(DiagMessage(source) << error);
|
|
return {};
|
|
}
|
|
|
|
io::IFile* file = apk->FindFile("resources.arsc");
|
|
if (!file) {
|
|
context->GetDiagnostics()->Error(DiagMessage(source) << "no resources.arsc found");
|
|
return {};
|
|
}
|
|
|
|
std::unique_ptr<io::IData> data = file->OpenAsData();
|
|
if (!data) {
|
|
context->GetDiagnostics()->Error(DiagMessage(source) << "could not open resources.arsc");
|
|
return {};
|
|
}
|
|
|
|
std::unique_ptr<ResourceTable> table = util::make_unique<ResourceTable>();
|
|
BinaryResourceParser parser(context, table.get(), source, data->data(), data->size(), apk.get());
|
|
if (!parser.Parse()) {
|
|
return {};
|
|
}
|
|
return util::make_unique<LoadedApk>(source, std::move(apk), std::move(table));
|
|
}
|
|
|
|
bool LoadedApk::WriteToArchive(IAaptContext* context, const TableFlattenerOptions& options,
|
|
IArchiveWriter* writer) {
|
|
FilterChain empty;
|
|
return WriteToArchive(context, table_.get(), options, &empty, writer);
|
|
}
|
|
|
|
bool LoadedApk::WriteToArchive(IAaptContext* context, ResourceTable* split_table,
|
|
const TableFlattenerOptions& options, FilterChain* filters,
|
|
IArchiveWriter* writer) {
|
|
std::set<std::string> referenced_resources;
|
|
// List the files being referenced in the resource table.
|
|
for (auto& pkg : split_table->packages) {
|
|
for (auto& type : pkg->types) {
|
|
for (auto& entry : type->entries) {
|
|
for (auto& config_value : entry->values) {
|
|
FileReference* file_ref = ValueCast<FileReference>(config_value->value.get());
|
|
if (file_ref) {
|
|
referenced_resources.insert(*file_ref->path);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
std::unique_ptr<io::IFileCollectionIterator> iterator = apk_->Iterator();
|
|
while (iterator->HasNext()) {
|
|
io::IFile* file = iterator->Next();
|
|
|
|
std::string path = file->GetSource().path;
|
|
// The name of the path has the format "<zip-file-name>@<path-to-file>".
|
|
path = path.substr(path.find('@') + 1);
|
|
|
|
// Skip resources that are not referenced if requested.
|
|
if (path.find("res/") == 0 && referenced_resources.find(path) == referenced_resources.end()) {
|
|
if (context->IsVerbose()) {
|
|
context->GetDiagnostics()->Note(DiagMessage()
|
|
<< "Removing resource '" << path << "' from APK.");
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (!filters->Keep(path)) {
|
|
if (context->IsVerbose()) {
|
|
context->GetDiagnostics()->Note(DiagMessage() << "Filtered '" << path << "' from APK.");
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// The resource table needs to be re-serialized since it might have changed.
|
|
if (path == "resources.arsc") {
|
|
BigBuffer buffer(4096);
|
|
// TODO(adamlesinski): How to determine if there were sparse entries (and if to encode
|
|
// with sparse entries) b/35389232.
|
|
TableFlattener flattener(options, &buffer);
|
|
if (!flattener.Consume(context, split_table)) {
|
|
return false;
|
|
}
|
|
|
|
io::BigBufferInputStream input_stream(&buffer);
|
|
if (!io::CopyInputStreamToArchive(context, &input_stream, path, ArchiveEntry::kAlign,
|
|
writer)) {
|
|
return false;
|
|
}
|
|
|
|
} else {
|
|
uint32_t compression_flags = file->WasCompressed() ? ArchiveEntry::kCompress : 0u;
|
|
if (!io::CopyFileToArchive(context, file, path, compression_flags, writer)) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
} // namespace aapt
|